herb layer
常見例句
- Herb layer coverage density was lower and the species fewer.
草本層的蓋度和物種數(shù)偏低。
dict.chla.com.cn - The trend of the species diversity index of the herb layer is downward with altitude.
草本層的物種多樣性指數(shù)隨著海拔高度的升高呈下降趨勢(shì)。 - In relatively stable stage of undergrowth plants, species and quantities increased, and Chinese fir community formed stable 3-layer structure including Chinese fir layer, shrub layer and herb layer.
林下植物相對(duì)穩(wěn)定階段(近成熟林和成熟林階段) ,種類組成和數(shù)量不斷增加,群落呈現(xiàn)穩(wěn)定的杉木層、灌木層和草本層的三層結(jié)構(gòu); 返回 herb layer